White Widow Auto 1st Time

I think you are on track, with POH perfect it is supposed to help manage this for you, it looks like it needs more nitrogen, that will help the yellowing, but this should be provided in your PH perfect product line, what is the growing medium I see you are saying soil, but knowing a bit more about that may help, what are you using for water, if not RO, what are you doing to remove the Chlorine and Chloramine from it, I have been growing organically, and shooting for around 6.2PH seems to be great, if my PH is high I have been using distilled white vinegar seems more natural and very very cheap, with great results.

Definitely looks over or under watered. Also, she doesnt need nutes now, use pH down and root bennies, but anything else could burn her at this stage.

Your PH is WAY to high get it down to 6.5. Not sure what medium you are using but it's not ideal for starting seedlings. Also raise the humidity significantly by getting a humidifier 30% is very bad for seedlings shoot for at least double that. You should also look into seedling nutrients as they look 1 of 2 things. Malurished or over watered. Being a new grower I'd say over watering. I would max put 500ml around the seedling. Do this every other day. Just make sure the soil around your seedling is moist. Then as the plant get's bigger it will require more water. Having dry medium is great so that oxygen can get to the roots and they can spread through out the pot. Having medium that is continually wet and heavy you will run into problems. google how to start seedlings for a more detailed method of watering. You did do something right by starting your auto seeds in large containers. You should never start an auto flower in a large container.